Canadian Solar Inc. (the "Company" or "Canadian Solar") (NASDAQ:CSIQ) today announced that e-STORAGE, its energy storage solutions business, will supply a 75 MW / 381 MWh DC battery energy storage system (BESS) to Apex Clean Energy in Branch County, Michigan. The system will be co-located with Apex's operating Coldwater Solar facility.

Under the agreement, e-STORAGE will deliver a complete, integrated solution that combines SolBank 3.0 battery blocks with Power Conversion Systems and e-STORAGE's proprietary EQ‑S Energy Management System into one coordinated utility‑scale platform. Deliveries are scheduled to begin in early 2027, with commercial operation targeted for mid-2027. e-STORAGE will provide its proprietary 'SolBank' battery pack powered by its lithium-Ion phosphate-based battery cells, all produced at Canadian Solar's manufacturing facilities, giving the customer full supply chain visibility and compliance.

Coldwater Storage enters service against a firm policy backdrop: Michigan law requires utilities to bring 2,500 MW of energy storage online by 2030, and the state's largest coal units are slated to retire through 2032, removing dispatchable capacity from the MISO grid that storage must replace. Once operational, the project will store low‑cost energy and discharge it when demand peaks, helping firm the supply that Michigan is shifting toward solar and wind.